Specifications

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SHENYANG MACHINE TOOL CO., LTD 23
engage with 4, and gear 9 engage with10, and through the sliding gear 11on Shaft
V engaging with big gear 12 of spindle, the spindle is low speed chain, thus, low
speed can be obtained.
 Power-driven freq.-conversion (See Fig.3-2)
Main transmission is transmitted from the gear 1 on Shaft I to the gear 3 on Shaft III and
to gear 6 on shaft VI through the gear 5, this transmitting chain is high speed.
Main transmission is transmitted from the gear 2 on Shaft I to the gear 4 on Shaft III and
to the gear 6 on Shaft VI through the gear 5, and this transmitting chain is middle speed.
Main transmission is transmitted from the gear 2 on Shaft I to the gear 4 on Shaft III and
to the gear 8 on shaft VI through the gear 7, and this transmitting chain is low speed.
The driving calculations of various revolution speeds of each step are calculated as
follows
：
a
：
38
47
52
56
230
115
3300  =2200 r/min
b
：
38
47
80
28
230
115
3300  =714 r/min
c
：
69
29
80
28
230
115
3300  =243 r/min
 Hydraulic freq.-conversion (See Fig.3-5)
Main transmission is transmitted from the gear 1 on Shaft I to the gear 3 on Shaft III and
to the gear 6 on Shaft VI through the gear 5, and this transmitting chain is high speed.
Main transmission is transmitted from the gear 2 on Shaft I to the gear 4 on Shaft III and
to the gear 6 on Shaft VI through the gear 5, and this transmitting chain is middle speed.
Main transmission is transmitted from the gear 2 on Shaft I to the gear 4 on Shaft III and
to the gear 8 on shaft VI through the gear 7, and this transmitting chain is low speed.
The driving calculations of various revolution speeds of each step are calculated as follows:
a
：
38
47
52
56
230
130
2880  =2165 r/min
b
：
38
47
80
28
230
130
2880  =700 r/min
c
：
69
29
80
28
230
130
2880  =235 r/min